<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input
        v-model="listQuery.id"
        clearable
        class="filter-item"
        style="width: 200px"
        :placeholder="$t('mall_brand.placeholder.filter_id')"
      />
      <el-input
        v-model="listQuery.name"
        clearable
        class="filter-item"
        style="width: 200px"
        :placeholder="$t('mall_brand.placeholder.filter_name')"
      />
      <el-button
        v-permission="['GET /admin/brand/list']"
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
        >{{ $t("app.button.search") }}</el-button
      >
      <el-button
        v-permission="['POST /admin/brand/create']"
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
        >{{ $t("app.button.create") }}</el-button
      >
      <el-button
        :loading="downloadLoading"
        class="filter-item"
        type="primary"
        icon="el-icon-download"
        @click="handleDownload"
        >{{ $t("app.button.download") }}</el-button
      >
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      :element-loading-text="$t('app.message.list_loading')"
      :header-cell-style="{
        background: 'rgba(239, 241, 244, 0.2)',
        color: '#333333',
      }"
      border
      fit
    >
      <el-table-column
        align="center"
        :label="$t('mall_brand.table.id')"
        prop="id"
      />

      <el-table-column
        align="center"
        :label="$t('mall_brand.table.name')"
        prop="name"
      />

      <el-table-column
        align="center"
        property="picUrl"
        :label="$t('mall_brand.table.pic_url')"
      >
        <template slot-scope="scope">
          <el-image
            :src="thumbnail(scope.row.picUrl)"
            :preview-src-list="toPreview(scope.row, scope.row.picUrl)"
            style="width: 40px; height: 40px"
          />
        </template>
      </el-table-column>

      <el-table-column
        align="center"
        min-width="400px"
        :label="$t('mall_brand.table.desc')"
        prop="desc"
      />

      <el-table-column
        align="center"
        :label="$t('mall_brand.table.floor_price')"
        prop="floorPrice"
      />

      <el-table-column
        align="center"
        :label="$t('mall_brand.table.actions')"
        width="200"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            v-permission="['POST /admin/brand/update']"
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)"
            >{{ $t("app.button.edit") }}</el-button
          >
          <el-button
            v-permission="['POST /admin/brand/delete']"
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)"
            >{{ $t("app.button.delete") }}</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="listQuery.page"
      :limit.sync="listQuery.limit"
      @pagination="getList"
    />

    <!-- 添加或修改对话框 -->
    <el-dialog width="60%"  :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form
        ref="dataForm"
        :rules="rules"
        :model="dataForm"
        status-icon
        label-position="left"
        label-width="100px"
        style="width: 400px; margin-left: 50px"
      >
        <el-form-item :label="$t('mall_brand.form.name')" prop="name">
          <el-input v-model="dataForm.name" />
        </el-form-item>
        <el-form-item
          :label="$t('mall_brand.form.simple_desc')"
          prop="simpleDesc"
        >
          <el-input v-model="dataForm.desc" />
        </el-form-item>
        <el-form-item :label="$t('mall_brand.form.pic_url')" prop="picUrl">
          <el-upload
            :headers="headers"
            :action="uploadPath"
            :show-file-list="false"
            :on-success="uploadPicUrl"
            class="avatar-uploader"
            accept=".jpg,.jpeg,.png,.gif"
          >
            <img v-if="dataForm.picUrl" :src="dataForm.picUrl" class="avatar" />
            <i v-else class="el-icon-plus avatar-uploader-icon" />
          </el-upload>
        </el-form-item>
        <el-form-item
          :label="$t('mall_brand.form.floor_price')"
          prop="floorPrice"
        >
          <el-input v-model="dataForm.floorPrice" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">{{
          $t("app.button.cancel")
        }}</el-button>
        <el-button
          v-if="dialogStatus == 'create'"
          type="primary"
          @click="createData"
          >{{ $t("app.button.confirm") }}</el-button
        >
        <el-button v-else type="primary" @click="updateData">{{
          $t("app.button.confirm")
        }}</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #20a0ff;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 120px;
  height: 120px;
  line-height: 120px;
  text-align: center;
}
.avatar {
  width: 145px;
  height: 145px;
  display: block;
}
</style>

<script>
import { listBrand, createBrand, updateBrand, deleteBrand } from "@/api/brand";
import { uploadPath } from "@/api/storage";
import { getToken } from "@/utils/auth";
import Pagination from "@/components/Pagination"; // Secondary package based on el-pagination
import { thumbnail, toPreview } from "@/utils/index";

export default {
  name: "Brand",
  components: { Pagination },
  data() {
    return {
      thumbnail,
      toPreview,
      uploadPath,
      list: [],
      total: 0,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        id: undefined,
        name: undefined,
        sort: "add_time",
        order: "desc",
      },
      dataForm: {
        id: undefined,
        name: "",
        desc: "",
        floorPrice: undefined,
        picUrl: undefined,
      },
      dialogFormVisible: false,
      dialogStatus: "",
      textMap: {
        update: "编辑",
        create: "创建",
      },
      rules: {
        name: [
          { required: true, message: "品牌商名称不能为空", trigger: "blur" },
        ],
      },
      downloadLoading: false,
    };
  },
  computed: {
    headers() {
      return {
        "X-Litemall-Admin-Token": getToken(),
      };
    },
  },
  created() {
    this.getList();
  },
  methods: {
    getList() {
      this.listLoading = true;
      listBrand(this.listQuery)
        .then((response) => {
          this.list = response.data.data.list;
          this.total = response.data.data.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.list = [];
          this.total = 0;
          this.listLoading = false;
        });
    },
    handleFilter() {
      this.listQuery.page = 1;
      this.getList();
    },
    resetForm() {
      this.dataForm = {
        id: undefined,
        name: "",
        desc: "",
        floorPrice: undefined,
        picUrl: undefined,
      };
    },
    handleCreate() {
      this.resetForm();
      this.dialogStatus = "create";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["dataForm"].clearValidate();
      });
    },
    uploadPicUrl: function (response) {
      this.dataForm.picUrl = response.data.url;
    },
    createData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          createBrand(this.dataForm)
            .then((response) => {
              this.list.unshift(response.data.data);
              this.dialogFormVisible = false;
              this.$message.success({
                title: "成功",
                message: "创建成功",
              });
            })
            .catch((response) => {
              this.$message.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleUpdate(row) {
      this.dataForm = Object.assign({}, row);
      this.dialogStatus = "update";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["dataForm"].clearValidate();
      });
    },
    updateData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          updateBrand(this.dataForm)
            .then(() => {
              for (const v of this.list) {
                if (v.id === this.dataForm.id) {
                  const index = this.list.indexOf(v);
                  this.list.splice(index, 1, this.dataForm);
                  break;
                }
              }
              this.dialogFormVisible = false;
              this.$message.success({
                title: "成功",
                message: "更新成功",
              });
            })
            .catch((response) => {
              this.$message.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleDelete(row) {
      deleteBrand(row)
        .then((response) => {
          this.$message.success({
            title: "成功",
            message: "删除成功",
          });
          this.getList();
        })
        .catch((response) => {
          this.$message.error({
            title: "失败",
            message: response.data.errmsg,
          });
        });
    },
    handleDownload() {
      this.downloadLoading = true;
      import("@/vendor/Export2Excel").then((excel) => {
        const tHeader = [
          "品牌商ID",
          "品牌商名称",
          "介绍",
          "低价",
          "品牌商图片",
        ];
        const filterVal = ["id", "name", "desc", "floorPrice", "picUrl"];
        excel.export_json_to_excel2(
          tHeader,
          this.list,
          filterVal,
          "品牌商信息"
        );
        this.downloadLoading = false;
      });
    },
  },
};
</script>
